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Any common audio format works.
Vocal isolation
Pull the voice out of the mix and hear it on its own — for sampling, study, or remixing. AI vocal isolation, free to preview.
Separation job
Outputs vocals, drums, bass, and other.
Uploads go to R2, processing runs through Replicate Demucs, and downloads unlock after sign-in.
Any common audio format works.
The voice is separated from drums, bass, and instruments.
Listen to 30 seconds free, download the isolated vocal when it sounds right.
These licensed source recordings were AI-separated by StemSlice and excerpted to 30 seconds. User uploads are private and never published.
Pop / 0:30
Switch tracks to compare the same point in the 30-second excerpt.
"Bummin on Tremelo" by Kevin MacLeod (incompetech.com), licensed under CC BY 4.0.
Creative Commons Attribution 4.0 license · AI-separated by StemSlice and excerpted to a 30-second preview.
Contemporary / 0:30
Switch tracks to compare the same point in the 30-second excerpt.
"Ether Vox" by Kevin MacLeod (incompetech.com), licensed under CC BY 4.0.
Creative Commons Attribution 4.0 license · AI-separated by StemSlice and excerpted to a 30-second preview.
Jazz / 0:30
Switch tracks to compare the same point in the 30-second excerpt.
"Secret of Tiki Island" by Kevin MacLeod (incompetech.com), licensed under CC BY 4.0.
Creative Commons Attribution 4.0 license · AI-separated by StemSlice and excerpted to a 30-second preview.
Rock / 0:30
Switch tracks to compare the same point in the 30-second excerpt.
"Exhilarate" by Kevin MacLeod (incompetech.com), licensed under CC BY 4.0.
Creative Commons Attribution 4.0 license · AI-separated by StemSlice and excerpted to a 30-second preview.
Electronica / 0:30
Switch tracks to compare the same point in the 30-second excerpt.
"Townie Loop" by Kevin MacLeod (incompetech.com), licensed under CC BY 4.0.
Creative Commons Attribution 4.0 license · AI-separated by StemSlice and excerpted to a 30-second preview.
Jazz / 0:30
Switch tracks to compare the same point in the 30-second excerpt.
"Faster Does It" by Kevin MacLeod (incompetech.com), licensed under CC BY 4.0.
Creative Commons Attribution 4.0 license · AI-separated by StemSlice and excerpted to a 30-second preview.
Use the vocal prediction for transcription, harmony study, and focused listening.
Hear breaths, harmonies, and phrasing you can't catch in the full mix.
Choose WAV, FLAC, or MP3-320 after the preview shows that the vocal is suitable for the intended edit.
You get both sides of every split.
Files are encrypted in transit and at rest, set to expire 24 hours after job creation, and then removed by automated cleanup.
Lead, backing parts, reverb, and shared ambience may remain together in a mastered mix.
Reducing the backing track makes quiet syllables, breaths, doubles, and phrasing easier to study. Loop a short line, compare it with the original mix, and slow it inside an editor after export if necessary. The isolated vocal can reveal performance detail, but accompaniment bleed should be expected where voice and instruments occupy the same frequencies.
A four-stem model predicts a vocal family, not the original multitrack session. Lead, doubles, harmonies, choir parts, and vocal effects can all appear in the vocal stem. That is useful for many covers and remixes, but it is not a promise of separate lead and backing-vocal files.
A vocal that sounds clean over a new beat may still reveal artifacts when played alone. Test an exposed intro, a dense chorus, and a sustained final note. Those moments cover different failure modes and make the preview a better guide than judging only the loudest ten seconds.
The output can contain lead, doubles, backing parts, and shared ambience because those elements overlap in the mastered recording. Label the file accurately when sharing it with collaborators, preserve the source reference, and avoid promising a completely dry vocal when the preview still contains production effects.
Loop the same syllable with and without the original mix, then listen to the tail after the word ends. A reverb tail may be part of the vocal production, while a repeating guitar or cymbal pattern is more likely accompaniment bleed. This comparison helps avoid destructive cleanup and gives collaborators a clearer description of the remaining artifact.
1 credit unlocks one full 4-stem download. Previewing, listening, and failed processing jobs do not consume credits.
$4.9
5 credits / one-time
Buy Credits$9.9
30 credits / one-time
Buy Credits$19.9
60 credits / one-time
Buy CreditsAnswers for free limits, formats, privacy, copyright, and download quality.
It means extracting just the singing from a song, so the vocal plays alone without the backing music.
Uploading and previewing is free (3 songs a day). Full-quality downloads use credits from $4.9 — no subscription.
Same result, different wording: both give you the vocal-only track.
The model targets all vocals as one stem. Separating lead from backing vocals isn't supported yet.
It's trained on music. For spoken word over background music it still performs well, but results vary.
Lossless WAV, FLAC, or 320kbps MP3.
The tool is legal; the vocal still belongs to its rights holder. Get permission before commercial use.
Extracted stems remain the property of the original rights holders. Commercial use requires their permission.